SumSudoku: Killer Sudoku

SumSudoku is a challenging crossover between Sudoku and Kakuro. In this addictive logic puzzle, you fill in a 9x9 Sudoku grid, where each region (marked by dark borders) must sum up to a clue given in the corner. Along with classic Sudoku rules—where numbers 1 to 9 must appear once per row, column, and 3x3 box—you’ll also need to ensure that the sum of the numbers within each area matches the clue provided. SumSudoku is perfect for puzzle fans of all skill levels, providing hours of intellectual entertainment as you solve puzzles from easy to very hard difficulty levels. With no ads, multiple difficulty options, and weekly bonus puzzles, this app keeps you coming back for more brain-teasing fun. Key Features: 120 free SumSudoku puzzles to solve. Extra bonus puzzle released weekly. Multiple difficulty levels, from easy to very hard. No ads for uninterrupted gameplay. Unique solutions for each puzzle. Available puzzle library continuously updates with new content. Sharpens logic and improves cognitive skills. Gaming Features: Unlimited Undo and Redo for puzzle-solving flexibility. Pencilmarks for solving complex puzzles. Check for conflicts during gameplay. Show possible sum combinations for easier solving. Highlight Excluded Squares to avoid mistakes. Lock numbers on the keypad for precision. Dark Mode support for comfortable playing. Track your puzzle-solving times. Backup & restore progress to Google Drive.